The basis for the movie is a dirty poem, which gets repeated and reworked in graphic detail many times through the film.
A woman walks into a living room completely naked, visible from the back and side.
Actors shoot a test scene completely nude. Breasts and buttocks are clearly visible.
Frequent discussion of sex and getting a virgin to have sex.
Women at a casting session hear about the sex scenes they might perform. One of them strips completely nude.